Attachment for knitting-machines.



PATENTED JULY 21 1903 J. B. HIPWELL; ATTACHMENT FOR KNITTING MACHINES.

APPL IUATION FILED APR. 22, 1903.

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No 733,964. I PATENTBD JULY 21. 1903. J. B. HIPWELL.

ATTACHMENT FOR KNITTING MACHINES APPLICATION FILED APR. 22, 1903'. noMODEL. 4 SHEETS-SHEET '2 No. 733,964. PATENTED JULY 21, 1903.

J. B. HIPWELL. ATTACHMENT FOR KNITTING MACHINES. APPLICATION FILED APR.22, 1903.

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PATENTBD JULY 21, 1903.

J. B. HIPWELL. ATTACHMENT FOR KNITTING MACHINES.

APPLICATION FILED APR. 22, 1903.

4 SHEETS-SHEETL N0 MODEL.

v vations of the interior of thecam-cylinder of UNITED STATES PatentedJuly 21, 1903 PATENT OFFICE.

JOHN B. HIPWELL, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE WINDSORMACHINE COMPANY, OF READING, PENNSYLVANIA, A COR- PORATION OFPENNSYLVANIA.

ATTACHMENT FOR KNITTING-MACHINES.

SPECIFICATION forming part of Letters Application filed April 22, 1903To all Ll/77107721 it may concern.-

Be it known that 1, JOHN B. HIPWELL, a citizen of the United States,residing in'the city and county of Philadelphia,State of Penn- 5sylvania, have invented a new and useful Improvement in Attachments forKnitting-Machines, of which the following is a specification.

My invention consists of means whereby lo the foot portion of a stockingis knit in two colors in such a manner that one of the colors is in theupper part'of the foot of a stocking and the other color isin the lowerpart thereof.

It also consists of means whereby certain of the loops in the upper halfof the foot portion of a stocking are interlocked with certain of theloops in the lower half ofthe foot portion during the process ofknitting and in such a manner that no seam exists where suchinterlocking of the loops occur, thereby pro: ducing a stocking in thefoot portion of which two colors of yarn are used and so arrangedrelatively to each other that one color is in the upper part of the footportion and the 2 5 other color in the lower part thereof.

Figure 1 represents a partial side elevation and partialverticalsection-of a portion of a knitting-machine with certain portions of myimprovements applied thereto. Fig. 2 reprego sents a plan view ofcertain of the parts seen in Fig. 1. Fig. 3 represents a verticalsection on line 00 00, Fig. 2. Fig. 4 represents a perspective view ofcertain detached portions of the device. Figs. 5, 7, and 9 representelethe machine opened out or developed. Fig. 6 represents a verticalsection on line y y, Fig. 5. Fig. 8 represents a vertical section ofcertain detached portions of the ma- 0 chine. Fig. 10 represents avertical section of certain detached portions of the machine. Fig. 11represents a vertical section on line a 2, Fig. 9. Figs. 12 and 13represent plan views of certain detached 'portions'of the ma- 5 chine.Fig. 14 represents a plan view of the needle-cylinder. Figs. 15 and 16represent side elevations of needles employed in connection with myinvention herein referred to.

Fig. 17 represents an elevation of the inte- Patent No. 733,964, datedJuly 21, 1903.

Serial No. 153,733. (No model.)

rior of a portion of a cam-cylinder with cer- 5o tain parts somewhatmodified from similar parts seen in Fig. 5. Fig. 18 represents avertical section on line to w in Fig. 17. Fig. 19 represents a partialplan view and partial horizontal section of certain of the parts seen inFig. 18.

Similar numerals of reference indicate corresponding parts in thefigures. Referring to the drawings, l designates acam-cylinderofiusualconstruction and driven by any well-known mechanism,it being noted that the cam-cylinder 1 is provided with the yarn-guides2 and 3, which are pivoted at 4 and 5, respectively, in the standards 6,which latter rise from the cam-cylinder 1, as seen in Fig. 1.

Projecting radially from the cam-cylinder 1 is a stud 7, on which isloosely fitted the sleeve 8, whose outer end is provided with theinclined faces 9, so as to produce a wedgeshaped extremity which isadapted to enter at certain times the recess 10 in the collar 11, whichis loosely fitted on the stud 7 and is adapted to slide thereon for apurpose hereinafter described. The collar 11 is provided Y with theprojecting members 12 and 13, through the outer ends of which are passedone end of the rods 14 and 15, respectively, as seen in Fig. 1. Theinner ends of the rods 14 and 15 are provided with the cams 16 and 17,respectively, and as best seen in Figs. 5, 10, and 11. The rods 14 and15 are loosely fitted in guides 18, secured to the cam-cylinder 1, asbest seenin Fig. 1, it being noted that said rods 14 and 15 are providedwith springs 19, the object of which is hereinafter described, and,furthermore, that the sleeve 8 is provided with an arm 20, whereby saidsleeve 8 may be turned on the stud 7 when desired.

Rigidly secured to the cam-cylinder 1 are cams 21, 22, 23, 24, 25, and'26 of usual construction.

Secured to the cam-cylinde-r"1 are guides 27 and 28, (see Fig. 2,) inwhich are guided 95 the rods 29 and 30, respectively, itbeing noted thatthe rod 29 is provided at its inner end with the cam 31, which passesthrough an opening 32 in the cylinder 1, and that the rod is provided atits inner end with the cam 33, which passes through an opening 34 in thecam-cylinder 1, and, furthermore, that the cams 16 and 17 pass throughopenings and 36, respectively, in the cam-cylinder 1. The rods 29 and 30are each provided with a collar 37, the inner end of each of which isinthe shape of a wedge 38, which is adapted to enter its respective recess39 in the guides 27 and 28 for a purpose hereinafter described, it beingnoted that the rods 29 and 30 are each provided with a spring 40, theobject of which is hereinafter described.

Located Within the cam-cylinder 1 is the needle-cylinder 41, of ordinaryconstruction, and is supplied with needles 42, which are provided withhubs or butts 43, which are longer than the hubs 45 on the needles 44.(See Figs. 1, 8, 10, 14, 15, and 16.)

The operation is as follows: Assuming that the leg and heel of astocking are finished and that the foot portion is to be produced, thesame is accomplished by bringing into action the yarn-guide 3 from theposition seen in dotted lines in Fig. 1 to that seen in full lines insaid figure, after which the yarn 47 is connected with the stocking inthe machine, which was previously" stopped. The arm 20 is then operatedby any suitable mechanism and causes the sleeve 8 to turn upon the stud7 in order to bring the wedge-shaped portion 9 of said sleeve 20 inalinement with the recess 10, whereupon the springs 19 expand and indoing this move the rods 14 and 15, and consequently the cams 16 and 17thereon, inwardly, thereby causing said cams 16 and 17 to project withinthe cam-cylinder 1, as seen in Figs. 10 and 13, it being understood thatwhen the cams 16 and 17 are in their normal or not-working positionsthey do not project within the cam-cylinder 1 and are in the positionsseen in Figs. 2, 3, and 11. The sleeves 37 are then turned upon the rods29 and 30, so as to cause their Wedge-shaped portions 38 to registerwith the recesses 39, whereupon the springs 40 expand and cause the rods29 and 30, and consequently the cams 31 and 33 thereon, to moveinwardly, and thereby bring said cams into action by causing the same toproject within the camcylinder 1, as seen in Figs. 8 and 12, it beingunderstood that when the cams 31 and 33 are in their normal orinoperative position they do not project within the cam-cylinder 1, asseen in Figs. 2 and 6. After the cams 16, 17, 31, and 33 are broughtinto their operative positions, as just stated, the machine is againstarted, so as to impart motion to the camcylinder 1 and rotate the sameto the extent of one revolution in one direction and then in theopposite direction and to a similar extent, and this reciprocatingrotary motion of the cam-cylinder 1 is continued until the foot portionof a stocking is finished, after which the toe portion thereof is made.Assuming the yarn 46 to be black and the yarn 47 white and that thecamcylinder 1 is rotating in the direction indicated by the arrows ainFig. 5, the needles 42 and 44 are then operated in the following manner,it being understood that the hubs 'or butts 45 are not of sufficientlength to be engaged by the cams 16, 17, 31, and 33, although they areof sufficient length to be engaged by the cams 22, 23, 24, 25, and 26:The needles 42 follow the course indicated by the arrows *c in Fig. 5when the cam-cylinder 1 is rotating in the direction indicated by thearrows at, whereupon said needles 42 are supplied with one color of yarnand knit the same into the upper half of the foot portion of a stockingwhen depressed by the cams 31 and 24. When the cam-cylinder 1 isreversedthat is to say, when it is rotating in the direction indicatedby the arrows b in'Fig. 9the needles 42 will follow the course indicatedby the arrows d in said figure, after which they again follow the courseindicated by the arrows c in Fig. 5, and so on. As hereinbefore stated,the hubs 'or butts 45 do not reach the cams 16, 17, 31, and 33,whereupon it is apparent that when the cam-cylinder 1 is rotating in thedirection indicated by the arrows (t in Figs. 5 and 7 the needles 44will follow the course indicated by the arrows e in Fig. 7, it beingunderstood that the hubs or butts 45 are, as hereinbefore stated, actedupon by the cams 24, 25, and 26, whereupon the needles 44 are suppliedwith white yarn when the same are in their elevated positions, and whenthey are depressed by the cams 25 and 26 they knit said white yarn intothe lower half of the foot portion of a stocking. When the cam-cylinder1 is reversedthat is to say, when it is rotated in the directionindicated by the arrows b in Fig. 9-the nee-v dles 44 follow the courseindicated by the arrows (1, except where they branch off, as indicatedby the arrows f indotted lines, after which they again follow the courseindicated by the arrows c in Fig. 7, and so on until the foot portion ofa stocking is completed, after which the toe portion thereof is finishedin the usual manner.

In Fig. 17 1 illustrate a modification of certain of the parts seen inFig. 5, said modification consisting in rigidly securing the cams 48 and49 to the cam-cylinder 1 instead of having them movable,as are the cams16 and 17, and, furthermore, in making the cam 50 a movable one insteadof a rigid one, as is the cam 21, it being noted that the mechanismemployed for operating the cam 50 is identical with that employed foroperating the cams 31 and 32.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a knitting-machine provided with a cam-ring having stitch-formingmechanism and a needle-cylinder with two sets of needles, one set beingprovided with long hubs and the other with short hubs, the two sets TIObeing arranged on opposite sides of the cylinder but'overlapping one ormore needles at each side; an auxiliary stitch-forming mechanism tocodperate only with the needles having long hubs, and means for throwingthe same into and out of action a pair of inclined cams movably mountedin said cam-ring in operative relation to the main stitch-formingmechanism for the purpose specified, and means for throwing them intoand out of action.

2. In a knitting-machine provided with a needle-cylinder and a cam-ringhaving stitchforming mechanism, the cylinder having two sets of needles,one set having long hubs and the other having short hubs, the two setsbeing arranged on opposite sides of the cylin der but overlappingione ormore needles on each side; an auxiliary pair of stitch-cams rigidlymounted in the cam-cylinder and not as thick as the regular stitch-cams;a movable center cam in the cam-ring cooperating with said auxiliarypair of stitch-cams; means for throwing the same into and out of action,and two movable inclined cams in operative relation with the mainstitch-forming mechanism for the purpose specified.

JOHN B. HIPWELL,

Witnesses:

JOHN D. HORST, JAMES AUSTIN.

